fix the bug for initial context setup failure

src/mme/mme_s11_handler.c

@@ -199,6 +199,22 @@ void mme_s11_handle_delete_session_response(
             d_assert(rv == CORE_OK, return,
                 "nas_send_deactivate_bearer_context_request failed");
         }
+        else if (FSM_CHECK(&bearer->sm, esm_state_active))
+        {
+            GTP_COUNTER_CHECK(mme_ue, GTP_COUNTER_DELETE_SESSION,
+                S1ap_Cause_t cause;
+                enb_ue_t *enb_ue = NULL;
+
+                enb_ue = mme_ue->enb_ue;
+                d_assert(enb_ue, return, );
+
+                cause.present = S1ap_Cause_PR_nas;
+                cause.choice.nas = S1ap_CauseNas_normal_release;
+                rv = s1ap_send_ue_context_release_commmand(
+                    enb_ue, &cause, S1AP_UE_CTX_REL_REMOVE_MME_UE_CONTEXT, 0);
+                d_assert(rv == CORE_OK, return, "s1ap send error");
+            );
+        }
         else
         {
             d_assert(0,, "Invalid ESM state");

src/pgw/pgw_context.c

@@ -1124,6 +1124,11 @@ pgw_sess_t *pgw_sess_add_by_message(gtp_message_t *message)
     }
 
     apn_parse(apn, req->access_point_name.data, req->access_point_name.len);
+
+    d_trace(3, "pgw_sess_add_by_message() [APN:%s, PDN:%d, EDI:%d]\n",
+            apn, req->pdn_type.u8,
+            req->bearer_contexts_to_be_created.eps_bearer_id.u8);
+
     sess = pgw_sess_find_by_imsi_apn(req->imsi.data, req->imsi.len, apn);
     if (!sess)
     {

src/sgw/sgw_context.c

@@ -537,6 +537,9 @@ sgw_ue_t *sgw_ue_add_by_message(gtp_message_t *message)
         return NULL;
     }
 
+    d_trace(3, "sgw_ue_add_by_message() - IMSI ");
+    d_trace_hex(3, req->imsi.data, req->imsi.len);
+
     sgw_ue = sgw_ue_find_by_imsi(req->imsi.data, req->imsi.len);
     if (!sgw_ue)
     {